Today, we are pleased to release XenForo 1.5.16. This release fixes a number of bugs and issues that were found since the previous release. As this is a maintenance release, the vast majority of the focus was an increase in stability.

Some of the changes in this release include:

Automatically replace ReCAPTCHA v1 with ReCAPTCHA v2 (NoCaptcha). ReCAPTCHA v1 will be retired in 2018 and will no longer function.